// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//

namespace Benchmarks.SIMD.RayTracer
{
    internal class Plane : SceneObject
    {
        public Vector Norm;
        public double Offset;

        public Plane(Vector norm, double offset, Surface surface) : base(surface) { Norm = norm; Offset = offset; }

        public override ISect Intersect(Ray ray)
        {
            double denom = Vector.Dot(Norm, ray.Dir);
            if (denom > 0) return ISect.Null;
            return new ISect(this, ray, (Vector.Dot(Norm, ray.Start) + Offset) / (-denom));
        }

        public override Vector Normal(Vector pos)
        {
            return Norm;
        }
    }
}

